MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external URIs and links to compromised WordPress upload storage, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple suspicious URLs points to a coordinated effort to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://coretry.ru/uplcv?utm_term=medical+apps+android PDF link annotation
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/161327e5587c8c---53800198617.pdfIn PDF document text
- http://tsuiteru66.com/userfiles/file/wejag.pdfIn PDF document text
- https://stancijanegrin.com/userfiles/file/84220916758.pdfIn PDF document text
- https://kalendarz.probik.pl/fckeditor/userfiles/file/jovokoketev.pdfIn PDF document text
- http://dieutrimun.myphamkangnam.vn/webroot/img/files/xuzem.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/nekowupamazefaxiwasut.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d30778e90---jiwawebejuwamopobi.pdfIn PDF document text
- http://tiga.co.th/ckfinder/userfiles/files/bemedo.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/jaruzafiferibefoj.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/61560434852.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/161314448228c1---47553796494.pdfIn PDF document text
- http://vilocom.net/webroot/img/files/9851097967.pdfIn PDF document text
- http://dailymaytrogiang.com/userfiles/files/piwigebufabunozew.pdfIn PDF document text
- http://gorod-r.com/userfiles/file/kaxumom.pdfIn PDF document text
- http://verkaufs-akademie.com/userfiles/file/63677240160.pdfIn PDF document text
- https://datenglagi.com/contents/files/29060850969.pdfIn PDF document text
- http://pate4me.com/userfiles/file/15029332124.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/c61fbaa85d234bb940182c4d549b4e34/dafogajuwuwu.pdfIn PDF document text
- http://newbiesites.com/userfiles/file/xufud.pdfIn PDF document text
- https://sportsslife.net/upload/ckfinder/files/31651554646.pdfIn PDF document text
- http://koreanhotpot.com/uploads/files/31642665984.pdfIn PDF document text
- http://angelofthewinds.org/ckfinder/userfiles/files/65796044217.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2C | 10404 bytes |
SHA-256: 3e8df533c517588aae98fbd4a9b0ca58471d7f0fb520b8613338d9d5eb563702 |
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font_01_sfnt_off000103bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103BD | 17180 bytes |
SHA-256: 2d235f14b758e89c5a16e38330b5d43b3955f3a5e30237ff210af81a9eae11d5 |
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font_02_sfnt_off00013013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13013 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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